<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			#p1{
				color: red;
			}
			#p2{
				font-size: 50px;	
			}
			#p1_p2{
				color: royalblue;
			}
		</style>
	</head>
	<body>
		<p id="p1_p2">验证一个元素能不能有两个id</p>
	</body>
	<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
	<script type="text/javascript">
		
	</script>
</html>
